'use strict';
function isObject(o) {
    return Object.prototype.toString.call(o) === '[object Object]'
}
function spinnerStart(text='loading...',load='\\|/|'){
    const Spinner = require('cli-spinner').Spinner
    const spinner = new Spinner(text+'%s')
    spinner.setSpinnerString(load)
    spinner.start()
    return spinner
}
function sleep(timeout = 1000){
    return new Promise(resolve=>setTimeout(resolve,timeout))
}
function exec(command,args,options){
    const win32 = process.platform === 'win32'
    const cmd = win32 ? 'cmd' : command
    const cmdArgs = win32 ? ['/c'].concat(command,args) : args
    return require('child_process').spawn(cmd, cmdArgs, options || {})
}
function execAsync(command,args,options){
    return new Promise((resolve,reject)=>{
        const p = exec(command,args,options);
        p.on('error',e=>{
            reject(e)
        })
        p.on('exit',c=>{
            resolve(c)
        })
    })
}

module.exports = {
    isObject,
    spinnerStart,
    sleep,
    exec,
    execAsync
}
